Climate averages 1991–2020
Sanxia weather
in September.
A hot, very wet month: the 4th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Sanxia: daytime highs average 29.2°C and nights cool to about 23.6°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 180 mm of rain on roughly 13 days, which makes September a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 19 min on an average September day.
The nearest other city in this atlas is Shulin (8 km away). In September its highs average 28.4°C, 0.9°C cooler than Sanxia, with 258 mm of rain.
Among the 28 cities listed in Taiwan, Sanxia ranks joint 4th of 28 for the warmest September highs and joint 4th of 28 for the driest September (rainfall, lowest first). The mean September high of those 28 cities is 28.5°C; Sanxia is 0.8°C warmer than that mean.
From September to October, average highs fall by 3.3°C to 25.9°C, and monthly rainfall falls from 180 mm to 102 mm.
The annual picture
September in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Sanxia climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 18.2°C12.5°C | 12.5°C | 70 | 11.7 | 10.811 h |
| February | 19.3°C12.9°C | 12.9°C | 85 | 10.5 | 11.311 h |
| March | 22.0°C14.8°C | 14.8°C | 102 | 13.0 | 12.012 h |
| April | 25.4°C18.2°C | 18.2°C | 106 | 11.9 | 12.713 h |
| May | 28.2°C21.6°C | 21.6°C | 140 | 13.0 | 13.313 h |
| June | 30.4°C24.3°C | 24.3°C | 143 | 12.5 | 13.714 h |
| July | 31.7°C25.3°C | 25.3°C | 141 | 12.6 | 13.514 h |
| August | 31.0°C25.1°C | 25.1°C | 225 | 16.0 | 13.013 h |
| September, selected | 29.2°C23.6°C | 23.6°C | 180 | 12.6 | 12.312 h |
| October | 25.9°C21.0°C | 21.0°C | 102 | 8.5 | 11.612 h |
| November | 23.4°C18.2°C | 18.2°C | 67 | 9.2 | 11.011 h |
| December | 19.7°C14.5°C | 14.5°C | 66 | 10.3 | 10.611 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
September in nearby cities
- Shulin in SeptemberTaiwan · 8 kmHigh 28.4°C · Low 23.5°C · 258 mm rain
- Bade in SeptemberTaiwan · 9 kmHigh 28.3°C · Low 22.9°C · 180 mm rain
- Taoyuan in SeptemberTaiwan · 10 kmHigh 27.9°C · Low 23.4°C · 180 mm rain
- Banqiao in SeptemberTaiwan · 13 kmHigh 28.5°C · Low 23.5°C · 258 mm rain
- Taipei in SeptemberTaiwan · 20 kmHigh 28.6°C · Low 24.5°C · 258 mm rain
- Neihu in SeptemberTaiwan · 27 kmHigh 28.5°C · Low 24.8°C · 258 mm rain
- Danshui, Taiwan in SeptemberTaiwan · 27 kmHigh 28.7°C · Low 25.2°C · 169 mm rain
- Zhudong in SeptemberTaiwan · 36 kmHigh 28.1°C · Low 22.8°C · 197 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Sanxia) is explained once on the Sanxia year overview and on the Sources, method and limits page.
Taoyuan and Bade lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.